/Engine/Source/Runtime/Landscape/Classes/Materials/MaterialExpressionLandscapeLayerSwitch.h
class UMaterialExpressionLandscapeLayerSwitch : public [UMaterialExpression](API\Runtime\Engine\Materials\UMaterialExpression)
FExpressionInpu...
LayerNotUsed
FExpressionInpu...
LayerUsed
FName
ParameterName
uint32: 1
PreviewUsed